RE: [TSCM-L] {2078} Simpson 8455 Meter

From: <Ed.St..._at_compucom.com>
Date: Fri, 19 Oct 2007 09:59:25 -0500

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Date: Fri, 19 Oct 2007 09:56:05 -0700 (PDT)
From: "R. Snyder" <rd..._at_yahoo.com>
Subject: Re: [TSCM-L] {2079} Re: Simpson 8455 Meter
To: TSCM-L2006_at_googlegroups.com
In-Reply-To: <05226F788C3E6046B9F592CDC4995678681C8D_at_SP099EXV01.compucom.local>
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The KS-8455 "Brownie" kick meter is old school. Once
a user has become familiarized with its operation, the
user intuitively interprets readings from the meter,
especially when the "REV" switch is used to obtain
dynamic readings indicative of capacitance (hence, the
name "kick meter"). Thus, if you're familiar with an
8455, you can obtain useful information with it. If
you're not, it may not be worth your time to develop a
working relationship with it. The logistics of
keeping fresh 45-volt batteries in stock (unless you
use five 9-volt batteries in series) make the 8455
less than ideal. However, you can probably get an
8455 on eBay for $10-15 if you want to try one out.
One of the main things I like about the 8455 is the
much higher voltage (45 volts) for the ohmmeter than
the typical very low voltages of most ohmmeters, in
case I'm performing a test where the higher voltage
would be beneficial.

I wouldn't recommend a 8455 over a DMM for the
2700-ohm resistor imbalance measurement. Furthermore,
for line imbalance, you might look into getting a
Sidekick meter, which largely replaced the 8455. The
Sidekick stresses the pair with a 90 dBrnC
longitudinal signal that drives current through any
series resistance fault on the pair. The series
resistance converts the longitudinal current into
voltage at the fault that produces a high stressed
noise reading.

--- Ed.St..._at_compucom.com wrote:

>
> Chuck,
>
> I have used this test with the Dektor DETA analyzer.
>
> The test will identify additional resistance on a
> line, as a result of a
> series tap. Some of the telephone industry
> analyzers I have used like
> the Riser Bond 6000 and Tek TS200 also have a line
> imbalance feature
> that saves you the math. Will not be very helpful
> however on an
> inductive attack.
>
> Sorry, have not used a Simpson, in quite a while.
> Hope this was
> helpful.
>
> Ed
> www.tscm-sweeps.com
>
>
> -----Original Message-----
> From: TSCM-..._at_googlegroups.com
> [mailto:TSCM-..._at_googlegroups.com]
> On Behalf Of Chuck
> Sent: Thursday, October 18, 2007 3:53 PM
> To: TSCM-L Professionals List
> Subject: [TSCM-L] {2078} Simpson 8455 Meter
>
>
> Quick question regarding the Simpson meter as
> pictured in the file
> section..... Will this meter replicate the line
> imbalance tests that
> utilize a DMM and the paired 2700 ohm resistors as
> outlined in some of
> the phone related TSCM work that's published (i.e.
> the Charles Taylor
> book)? Does anyone in the field use this meter as
> an aid for
> determining if something unwanted is on a pair? Is
> the meter
> sensitive enough to be of reasonable value?
>
> Thanks for your comments.
>
>
>
>
>
>
>
>
>


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Received on Sat Mar 02 2024 - 00:57:22 CST

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